考虑DG接入与设备运行成本的配电网无功优化

以配电网综合运行成本最小为目标并考虑DG接入,提出了一种改进的配电网无功动态优化算法。分析了主要运行设备对配电网综合运行成本的作用机理并建立了以配电网运行综合成本最小的配电网无功优化数学模型;通过在迭代过程中依据电压偏差对DG注入无功量进行实时修正建立了改进的配电网前推回代潮流算法;建立了可兼顾处理状态量和离散量的混合粒子群算法并引入小生境操作以加速配电网无功优化过程;设计并研制了对应的配电网无功优化系统,并以此为平台进行了算例研究。算例结果表明,所提出的配电网无功优化算法能够进一步提高配电网运行的经济性,且对应的优化方案具有更强的可操作性。...

Full description

Saved in:
Bibliographic Details
Published in电力系统保护与控制 Vol. 40; no. 21; pp. 36 - 41
Main Author 陈树恒 党晓强 李兴源 刘群英
Format Journal Article
LanguageChinese
Published 电子科技大学能源科学与工程学院,四川 成都 611731%四川大学水利水电学院,四川 成都 610065%四川大学电气信息学院,四川 成都 610065 2012
Subjects
Online AccessGet full text
ISSN1674-3415

Cover

More Information
Summary:以配电网综合运行成本最小为目标并考虑DG接入,提出了一种改进的配电网无功动态优化算法。分析了主要运行设备对配电网综合运行成本的作用机理并建立了以配电网运行综合成本最小的配电网无功优化数学模型;通过在迭代过程中依据电压偏差对DG注入无功量进行实时修正建立了改进的配电网前推回代潮流算法;建立了可兼顾处理状态量和离散量的混合粒子群算法并引入小生境操作以加速配电网无功优化过程;设计并研制了对应的配电网无功优化系统,并以此为平台进行了算例研究。算例结果表明,所提出的配电网无功优化算法能够进一步提高配电网运行的经济性,且对应的优化方案具有更强的可操作性。
Bibliography:CHEN Shu-heng1, DANG Xiao-qiang2, LI Xing-yuan3, LIU Qun-ying1 (1. School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; 2. School of Water Conservancy and Hydroelectric Power, Sichuan University, Chengdu 610065, China; 3. School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China)
41-1401/TM
distributed generation; hybrid particle swarm algorithm; niche; reactive power optimization
An improved algorithm is presented for reactive power dynamical optimization of distributed system with distributed generators, with the objective of minimizing the integrated cost. Firstly, the relationship between the main running devices and the integrated running cost is analyzed, and the mathematical model is presented which aims to minimize the integrated cost; further, the traditional back/forward sweep method for radial distributed network power flow is improved by modifying the reactive power amount of DG immediately accordi
ISSN:1674-3415